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Totally internally reflected ray

  • Thread starter aurao2003
  • Start date
  • #1
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Homework Statement


The diagram shows a cube of glass. A ray of light, incident at the centre of a face of the cube, at an
angle of incidence θ, goes on to meet another face at an angle of incidence of 50°, as shown
in Figure 3.
critical angle at the glass-air boundary = 45°
Figure 3
(a) Draw on the diagram the continuation of the path of the ray, showing it passing through the glass
and out into the air.



Homework Equations





The Attempt at a Solution


I know that thw wave will be internally reflected. But I am not sure of the angle at which it will emerge from the glass to air boundary. Please advise.
 

Answers and Replies

  • #2
ehild
Homework Helper
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1,813
Show the picture, please.

ehild
 
  • #3
126
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Sorry. Not sure how to do it.
 
  • #4
ehild
Homework Helper
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1,813
The solution depends on the plane of incidence. What is it?
To load a picture, go to "Go Advanced" then "Manage Attachments".

ehild
 

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